CN113275201B - Foil gluing equipment and gluing method thereof - Google Patents
Foil gluing equipment and gluing method thereof Download PDFInfo
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- CN113275201B CN113275201B CN202110692127.4A CN202110692127A CN113275201B CN 113275201 B CN113275201 B CN 113275201B CN 202110692127 A CN202110692127 A CN 202110692127A CN 113275201 B CN113275201 B CN 113275201B
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- glue
- gluing
- foil
- negative pressure
- aluminum foil
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/027—Coating heads with several outlets, e.g. aligned transversally to the moving direction of a web to be coated
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
- B05C11/1026—Valves
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1042—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material provided with means for heating or cooling the liquid or other fluent material in the supplying means upstream of the applying apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/04—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material to opposite sides of the work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/007—After-treatment
Abstract
The invention relates to foil gluing equipment, in particular to negative pressure platform, foil gluing equipment and a gluing method thereof, wherein the negative pressure platform comprises a platform body and a refrigerating unit for refrigerating foil, a working surface is arranged on the outer side of the platform body, a leveling area for adsorbing the foil and a coating area opposite to a gluing head are arranged on the working surface, and a plurality of negative pressure holes are formed in the leveling area.
Description
Technical Field
The invention relates to foil gluing equipment, in particular to a negative pressure platform, and further relates to foil gluing equipment comprising the negative pressure platform and a gluing method of the foil gluing equipment.
Background
The lithium battery has the advantages of high energy density, high capacity, long service life and the like, and is widely applied to a plurality of fields of mobile phones, tablet personal computers, electric tools, electric bicycles, electric automobiles, military equipment, aerospace and the like.
The electrode of the existing lithium battery generally uses a coated copper foil and a coated aluminum foil to improve the electrical performance of the battery, and simultaneously, a carbon coated copper foil and a coated aluminum foil with conductive coatings containing conductive carbon appear;
for the cathode coating of the lithium battery, the currently adopted process is cold glue coating, the cold glue coating is easy to damage and has short circuit risk, so the hot melt glue coating scraping process is considered, the glue coating thickness is required to be 5-25 microns, the speed is required to be 90m/min, the width is required to be 10mm, meanwhile, the glue layer is required to cover a conductive coating area by about 1mm, but the existing glue coating equipment cannot meet the process requirement, and when the foil is subjected to glue coating through a glue coating head, the foil is easy to be scratched due to uneven foil.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the problem that in the prior art, when a foil is glued through a gluing head, the foil is easy to scratch due to uneven foil, a negative pressure platform is provided, and in addition, the invention further relates to foil gluing equipment comprising the negative pressure platform and a gluing method of the foil gluing equipment.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a negative pressure platform, includes the platform body and is used for the refrigerating unit to the foil, the outside of platform body has a working face, this internal negative pressure chamber that has of platform, have on the working face be used for adsorbing the flattening district of foil and be used for with the coating district of rubber coating head opposition, flattening district and coating district stagger each other and set up, have a plurality of negative pressure holes in the flattening district, negative pressure hole all communicates with the negative pressure chamber.
Utilize the negative pressure hole to make the flattening district produce adsorption function in this scheme, so can adsorb the foil that is located the platform body, prevent that the foil on the platform body from taking place to warp, ensure the planarization of foil when the coating district rubber coating, avoid the foil to appear by the phenomenon of rubber coating head scratch crack when the rubber coating because of unevenness, promote the yields, refrigeration unit's setting then can accelerate the hot melt adhesive and solidify on the foil, in order to promote the rubber coating speed, and can prevent that the negative pressure platform from rising the temperature because it is too near to glue coating head, lead to the foil when the positive glue film of foil is scratched.
Further, the negative pressure holes in the leveling area are distributed in an array.
Further, the opening of the negative pressure cavity is blocked by an end cover, the end cover is fixedly connected with the platform body, and a negative pressure interface communicated with the negative pressure cavity is arranged on the end cover; the negative pressure interface is connected with a negative pressure source, so that each negative pressure hole generates negative pressure suction force.
Further, the refrigeration unit includes an inlet passage and an outlet passage for a flow of a refrigeration fluid, the inlet passage and the outlet passage being in communication with each other; and cooling fluid is utilized to provide cooling capacity for the platform body when flowing through the inlet channel and the outlet channel, so that the platform body and the foil thereon are refrigerated.
Further, the inlet channel or/and the outlet channel is/are located directly below the coating zone; thereby the cold energy is concentrated in the coating area, and the cooling effect on the adhesive layer on the foil is improved.
Further, the refrigeration unit comprises a semiconductor refrigeration piece, and the semiconductor refrigeration piece is arranged on the platform body; after the semiconductor refrigerating sheet is electrified, the cold end of the semiconductor refrigerating sheet provides cold energy for the platform body.
The invention also provides foil gluing equipment, which comprises a bracket, a gluing device and a negative pressure platform, wherein the negative pressure platform is the negative pressure platform, and the gluing device and the platform body are both arranged on the bracket;
the glue spreading device comprises a glue feeding mechanism, a glue breaking mechanism, a glue feeding module and a glue spreading head for coating glue, wherein the glue feeding mechanism is used for providing the glue for the glue feeding module, the glue spreading head is fixedly connected with the glue feeding module and communicated with the glue feeding module, the glue breaking mechanism is used for allowing or blocking the glue in the glue feeding module to flow into the glue spreading head, and the glue spreading head is located above a working surface of the negative pressure platform and is opposite to a leveling area of the negative pressure platform.
Further, the glue breaking mechanism comprises a firing pin and a power mechanism, the glue feeding module is provided with a first flow passage and a second flow passage communicated with the first flow passage, a step surface for the firing pin to abut against is arranged between the first flow passage and the second flow passage, the glue feeding mechanism is communicated with the first flow passage, the second flow passage is communicated with the glue spreading head, the power mechanism is used for driving the firing pin to be close to or far away from the step surface, one end of the firing pin is inserted into the first flow passage, and the other end of the firing pin is connected with the power mechanism; when the power mechanism drives the firing pin to prop against the step surface, the first flow channel and the second flow channel are isolated, namely, the glue supply to the glue spreading head is stopped; when the power mechanism drives the firing pin to be far away from the step surface, the first flow channel is communicated with the second flow channel, and glue starts to be supplied to the gluing head.
Further, the power mechanism comprises a valve body, a valve cavity is arranged in the valve body, a piston is fixed at one end of the firing pin, which is far away from the first flow channel, the piston divides the interior of the valve cavity into a rodless cavity and a rod cavity, the firing pin is positioned in the rod cavity, a spring is arranged in the rodless cavity, and the spring props against the piston; the arrangement can improve the compactness of the structure, and meanwhile, the spring props against the piston, so that the firing pin is ensured to be in a normally closed state, and the glue leakage phenomenon of the glue spreading head is prevented when the glue spreading head is in a non-glue spreading state; when the gas is introduced into the rod cavity, the piston and the firing pin are gradually far away from the step surface, the firing pin faces, and when the gas is introduced into the rod-free cavity, the piston and the firing pin face close to the step surface.
Further, an adjusting rod is connected to the valve body through threads, and one end, away from the piston, of the spring abuts against the adjusting rod; the pretightening force between the firing pin and the step surface of the glue feeding module can be changed by screwing the adjusting rod.
Further, the power mechanism is an air cylinder or an electric push rod.
Further, the gluing device also comprises a heating block, wherein the heating block is provided with a glue inlet flow channel, the glue supply mechanism is communicated with the glue inlet module through the glue inlet flow channel, and the heating block is provided with a heating assembly; the heating assembly is used for heating the heating block, so that the temperature of the hot melt adhesive can be maintained, and the fluidity of the hot melt adhesive is improved.
Further, a filtering component for filtering the glue flowing through the glue inlet flow passage is arranged in the glue inlet flow passage; the glue is filtered in advance by the filtering component and then enters the glue feeding module and the glue spreading head, so that the glue is prevented from being blocked.
Further, the glue supply mechanism comprises a glue cylinder, one end of the glue cylinder is provided with an air inlet, the other end of the glue cylinder is provided with an outlet, and the outlet of the glue cylinder is communicated with the glue inlet module; and air is introduced into the air inlet, so that the glue in the glue cylinder is pushed by air pressure to flow out of the outlet of the glue cylinder, and glue supply is realized.
Further, the gluing device on the bracket is provided with two gluing devices; therefore, the two sides can be simultaneously coated with the adhesive, and the adhesive coating efficiency can be improved especially for the foil materials with the adhesive coating requirements on the two sides.
Further, the glue spreading head comprises a glue head body, the glue head body is provided with a glue outlet, the glue outlet is provided with a main glue outlet, one end of the main glue outlet is extended with an auxiliary glue outlet, the main glue outlet and the auxiliary glue outlet are communicated with each other, the auxiliary glue outlet gradually inclines upwards along the direction from the main glue outlet to the auxiliary glue outlet, and the glue outlet is communicated with a glue inlet module; the main glue outlet and the auxiliary glue outlet are arranged on the glue spreading head, the first section of glue layer is coated on the edge of the aluminum foil through the main glue outlet, and the second section of glue layer connected with the first section of glue layer is coated on the conductive coating on the aluminum foil through the auxiliary glue outlet, so that the edge of the aluminum foil and the edge of the conductive coating are covered by the glue layer simultaneously during glue spreading.
The invention also provides a gluing method adopting the foil gluing equipment, wherein the foil is a coated aluminum foil, the coated aluminum foil comprises an aluminum foil, and the middle parts of the front surface and the back surface of the aluminum foil are respectively provided with a conductive coating, and the gluing method comprises the following steps:
s1, wrapping a coated aluminum foil on an unreeling shaft of an unreeling machine, enabling the free end of the coated aluminum foil to sequentially pass through gaps between a gluing head and a working surface of a negative pressure platform in each foil gluing device, and winding the coated aluminum foil on a reeling shaft of the reeling machine;
the running path of the coated aluminum foil between the unreeling machine and the reeling machine is provided with a front gluing section and a back gluing section, the front side of the coated aluminum foil positioned at the front gluing section faces upwards, the coated aluminum foil positioned at the front gluing section reaches the back gluing section after passing through a plurality of guide rollers, the back side of the coated aluminum foil positioned at the back gluing section faces upwards, and the front gluing section and the back gluing section are provided with foil gluing equipment;
s2, along with the running of the coated aluminum foil between the unreeling machine and the reeling machine, the coated aluminum foil firstly carries out front gluing at a front gluing section and then reaches a back gluing section to carry out back gluing;
the foil gluing device comprises a front gluing section, a back gluing section, a main glue outlet, a secondary glue outlet, a cooling unit and a cooling unit, wherein the front gluing section is positioned on the front gluing section of the foil gluing device, the leveling area of the working surface of the negative pressure platform of the foil gluing device adsorbs a coated aluminum foil, the main glue outlet of the gluing head is aligned with the edge of the front of the aluminum foil, the secondary glue outlet is aligned with the conductive coating of the front of the aluminum foil, and the cooling unit is started or closed at the front gluing section of the coated aluminum foil when the front of the coated aluminum foil is glued;
the foil gluing device comprises a foil gluing device, a coating aluminum foil, a main glue outlet, a secondary glue outlet, a cooling unit and a glue outlet, wherein the leveling area of the working surface of a negative pressure platform of the foil gluing device at the back side gluing section adsorbs the coating aluminum foil, the main glue outlet of the gluing head is aligned with the edge of the front side of the aluminum foil, the secondary glue outlet is aligned with the conductive coating on the back side of the aluminum foil, and the cooling unit at the back side gluing section is started when the back side of the coating aluminum foil is glued.
The beneficial effects of the invention are as follows: the negative pressure platform provided by the invention has the advantages that the negative pressure holes are utilized to enable the leveling zone to generate an adsorption function, so that foil materials positioned on the platform body can be adsorbed, the foil materials on the platform body are prevented from warping, the smoothness of the foil materials in the coating zone during gluing is ensured, the phenomenon that the foil materials are scratched by the gluing head due to uneven surfaces during gluing is avoided, the yield is improved, the setting of the refrigerating unit can accelerate the solidification of hot melt adhesive on the foil materials so as to facilitate the lifting of the gluing speed, and the negative pressure platform can be prevented from being heated due to the fact that the negative pressure platform is too close to the gluing head, so that the adhesive layer on the front surface of the foil materials is scratched during gluing on the back surface of the foil materials.
Drawings
The invention will be further described with reference to the drawings and examples.
FIG. 1 is a three-dimensional schematic view of a foil gluing device of the present invention;
FIG. 2 is an enlarged schematic view of a portion of FIG. 1A;
FIG. 3 is a schematic front view of a foil gluing device of the present invention;
FIG. 4 is a schematic cross-sectional view of B-B of FIG. 3;
FIG. 5 is an enlarged partial schematic view of C in FIG. 4;
FIG. 6 is a three-dimensional schematic of the negative pressure platform of the present invention;
FIG. 7 is a schematic top view of the negative pressure platform of the present invention;
FIG. 8 is a schematic view in section D-D of FIG. 7;
fig. 9 is a three-dimensional schematic of the applicator head of the present invention;
figure 10 is a schematic cross-sectional view of the applicator head of the present invention;
FIG. 11 is an enlarged partial schematic view of E in FIG. 10;
fig. 12 is a schematic view of the present invention when the coated aluminum foil is rubberized;
fig. 13 is a schematic view of the present invention prior to application of the glue to the coated aluminum foil;
fig. 14 is a schematic cross-sectional view of the present invention after the coated aluminum foil is rubberized.
In the figure: 1. the platform comprises a platform body, 101, a working surface, 1011, a leveling area, 1012, a coating area, 102, a negative pressure cavity, 1021, a negative pressure hole, 103, an end cover, 1031, a negative pressure interface, 104, an inlet channel, 105 and an outlet channel;
2. a bracket;
3. the glue supply mechanism 301, the glue cylinder 3011 and the air inlet;
4. the device comprises a glue breaking mechanism 401, a firing pin 402, a valve body 403, a piston 404, a rodless cavity 405, a rod cavity 406, a spring 407 and an adjusting rod;
5. the glue feeding module 501, the first runner 502, the second runner 503 and the step surface;
6. the device comprises a heating block, 601, a glue inlet runner, 602 and a filtering component;
7. a gluing head 701, a glue outlet, a 7011 main glue outlet, a 7012 auxiliary glue outlet;
8. coating aluminum foil, 801, aluminum foil, 802, conductive coating, 803 and adhesive layer;
9. unreeling machine 10, reeling machine 11, guiding roller 12, front gluing section 13, reverse gluing section.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only those features which are relevant to the invention, and orientation and reference (e.g., up, down, left, right, etc.) may be used solely to aid in the description of the features in the drawings. The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the claimed subject matter is defined only by the appended claims and equivalents thereof.
Example 1
As shown in fig. 1-11, a negative pressure platform comprises a platform body 1 and a refrigerating unit for refrigerating foil, a working surface 101 is arranged on the outer side of the platform body 1, a negative pressure cavity 102 is arranged in the platform body 1, a leveling area 1011 for absorbing the foil and a coating area 1012 for being opposite to a gluing head 7 are arranged on the working surface 101, the leveling area 1011 and the coating area 1012 are staggered, a plurality of negative pressure holes 1021 are formed in the leveling area 1011, and the negative pressure holes 1021 are communicated with the negative pressure cavity 102.
The negative pressure holes 1021 in the leveling region 1011 are distributed in an array.
The opening of the negative pressure cavity 102 is blocked by an end cover 103, the end cover 103 is fixedly connected with the platform body 1, and a negative pressure interface 1031 communicated with the negative pressure cavity 102 is arranged on the end cover 103; the negative pressure interface 1031 is connected with a negative pressure source, so that each negative pressure hole 1021 generates negative pressure suction force; in this embodiment, a vacuum pump or a vacuum generator may be used.
The refrigeration unit in this embodiment comprises an inlet channel 104 and an outlet channel 105 for the flow of a refrigeration fluid, the inlet channel 104 and the outlet channel 105 being in communication with each other; the cooling fluid is utilized to provide cooling capacity for the platform body 1 when flowing through the inlet channel 104 and the outlet channel 105, so that the platform body 1 and the foil thereon are cooled; preferably, the inlet channel 104 and/or the outlet channel 105 are located directly below the coating area 1012; thereby concentrating the cold energy in the coating area 1012 and improving the cooling effect on the adhesive layer (803) of the foil; the refrigerating fluid in this embodiment may be a gas or a liquid.
Alternatively, the refrigerating unit in this embodiment includes a semiconductor refrigerating plate, and the semiconductor refrigerating plate is mounted on the platform body 1; after the semiconductor refrigerating sheet is electrified, the cold end of the semiconductor refrigerating sheet provides cold energy for the platform body 1.
The negative pressure platform of this embodiment utilizes negative pressure hole 1021 to make leveling district 1011 produce the adsorption function, so can adsorb the foil that is located on platform body 1, prevent that the foil on the platform body 1 from taking place to warp, ensure the planarization of foil when the coating district 1012 rubber coating, avoid the foil to appear by the phenomenon of rubber coating head 7 scraping crack because of unevenness when the rubber coating, promote the yields, refrigeration unit's setting then can accelerate the solidification of hot melt adhesive on the foil, in order to promote the rubber coating speed, and can prevent that the negative pressure platform from rising the temperature because of being too near apart from the rubber coating head, lead to the foil when the reverse side rubber coating, the positive glue film 803 of foil is scratched.
Example 2
As shown in fig. 1-5 and 9-11, a foil gluing device comprises a bracket 2, a gluing device and a negative pressure platform, wherein the negative pressure platform is the negative pressure platform in the embodiment 1, and the gluing device and the platform body 1 are both arranged on the bracket 2;
the glue spreading device comprises a glue feeding mechanism 3, a glue breaking mechanism 4, a glue feeding module 5 and a glue spreading head 7 for coating glue, wherein the glue feeding mechanism 3 is used for providing the glue for the glue feeding module 5, the glue spreading head 7 and the glue feeding module 5 are fixedly connected and communicated with each other, the glue breaking mechanism 4 is used for allowing or blocking the glue in the glue feeding module 5 to flow into the glue spreading head 7, and the glue spreading head 7 is located above a working surface 101 of a negative pressure platform and is opposite to a leveling area 1011 of the negative pressure platform.
The glue breaking mechanism 4 in this embodiment includes a striker 401 and a power mechanism, the glue feeding module 5 has a first flow channel 501 and a second flow channel 502 communicated with the first flow channel 501, a step surface 503 for the striker 401 to abut is provided between the first flow channel 501 and the second flow channel 502, the glue feeding mechanism 3 is communicated with the first flow channel 501, the second flow channel 502 is communicated with the glue spreading head 7, the power mechanism is used for driving the striker 401 to approach or separate from the step surface 503, one end of the striker 401 is inserted into the first flow channel 501, and the other end is connected with the power mechanism; when the power mechanism drives the firing pin 401 to prop against the step surface 503, the first flow channel 501 and the second flow channel 502 are isolated, namely, the glue supply to the glue spreading head 7 is stopped; when the power mechanism drives the striker 401 to move away from the step surface 503, the first flow channel 501 and the second flow channel 502 are communicated, and thus, the glue supply to the glue head 7 is started.
In this embodiment, the power mechanism includes a valve body 402, a valve cavity is provided in the valve body 402, a piston 403 is fixed at one end of the striker 401 away from the first flow channel 501, the piston 403 divides the valve cavity into a rodless cavity 404 and a rod cavity 405, the striker 401 is located in the rod cavity 405, a spring 406 is provided in the rodless cavity 404, and the spring 406 abuts against the piston 403; by the arrangement, the compactness of the structure can be improved, meanwhile, the spring 406 props against the piston 403, the firing pin 401 can be ensured to be in a normally closed state, and the glue leakage phenomenon of the glue spreading head 7 in a non-glue spreading state is prevented; when the rod cavity 405 is filled with gas, the piston 403 and the striker 401 are gradually away from the step surface 503, and when the rod cavity 404 is filled with gas, the piston 403 and the striker 401 are close to the step surface 503.
The valve body 402 is connected with an adjusting rod 407 through threads, and one end of the spring 406 away from the piston 403 is propped against the adjusting rod 407; by twisting the adjustment lever 407, the pre-tightening force between the striker 401 and the step surface 503 of the glue feeding module 5 can be changed.
The power mechanism in this embodiment may also adopt a linear reciprocating mechanism such as an air cylinder or an electric push rod.
The glue spreading device in this embodiment further includes a heating block 6, the heating block 6 has a glue inlet channel 601, the glue supply mechanism 3 is communicated with the first channel 501 of the glue inlet module 5 through the glue inlet channel 601, and a heating assembly is disposed on the heating block 6; the heating component can specifically adopt an electric heating wire, and the heating component is utilized to accelerate heating, so that the temperature of the hot melt adhesive can be maintained, and the fluidity of the hot melt adhesive is improved.
The glue inlet channel 601 of the embodiment is provided with a filter assembly 602 for filtering the glue flowing through the glue inlet channel 601; the glue is filtered in advance by the filtering component 602, and then enters the glue inlet module 5 and the glue spreading head 7, so that the glue can be prevented from being blocked.
In this embodiment, the glue supply mechanism 3 includes a glue cylinder 301, one end of the glue cylinder 301 has an air inlet 3011, the other end has an outlet, and the outlet of the glue cylinder 301 is communicated with the glue inlet module 5; the air is introduced into the air inlet 3011, so that the air pressure pushes the glue in the glue cylinder 301 to flow out of the outlet of the glue cylinder 301, and glue supply is realized; it should be noted that, the adhesive supplying mechanism 3 in this embodiment may also be a piston type adhesive supplying mechanism or a hot melt adhesive machine, the hot melt adhesive machine may also be a cylinder type hot melt adhesive machine or a platen type hot melt adhesive machine, the cylinder type hot melt adhesive machine is a mechanism for supplying adhesive by a gear pump or a piston pump, the platen type hot melt machine is a mechanism for supplying adhesive by pressing down a platen, and the platen type hot melt machine is used for PUR hot melt adhesive, namely moisture curing adhesive.
The number of the gluing devices on the bracket 2 is two; therefore, the two sides can be simultaneously coated with the adhesive, and the adhesive coating efficiency can be improved especially for the foil materials with the adhesive coating requirements on the two sides.
The glue head 7 comprises a glue head body, the glue head body is provided with a glue outlet 701, the glue outlet 701 is provided with a main glue outlet 7011, one end of the main glue outlet 7011 is extended with a secondary glue outlet 7012, the main glue outlet 7011 and the secondary glue outlet 7012 are communicated with each other, the secondary glue outlet 7012 is gradually inclined upwards along the direction from the main glue outlet 7011 to the secondary glue outlet 7012, and the glue outlet 701 is communicated with the glue inlet module 5; by arranging the main glue outlet 7011 and the auxiliary glue outlet 7012 on the glue coating head 7, simultaneously, the main glue outlet 7011 coats the first section of glue layer 803 on the edge of the aluminum foil 801, and the auxiliary glue outlet 7012 coats the second section of glue layer 803 connected with the first section of glue layer 803 on the conductive coating 802 of the aluminum foil 801, so that the glue layer 803 simultaneously covers the edge of the aluminum foil 801 and the edge of the conductive coating 802 during glue coating.
The working principle of the embodiment is as follows:
the foil to be glued passes through the gap between the gluing head 7 and the working surface 101 of the platform body 1, the foil and the gluing head 7 generate relative motion under the action of external power, and the foil can be adsorbed by the negative pressure holes 1021 of the leveling area 1011, so that the flatness is improved;
glue feeding mechanism 3 improves glue to the glue inlet runner 601 of heating block 6, and glue in glue inlet runner 601 can be filtered by filtering component 602 simultaneously and heating heat preservation of heating component, then enters into the first runner 501 of advance gluey module 5, and when glue breaking mechanism 4 control firing pin 401 kept away from step face 503, glue in first runner 501 flows into second runner 502 to enter into the play glue hole 701 of gluing head 7, finally follow out glue hole 701 and flow out, thereby realize gluing the foil.
Example 3
As shown in fig. 12-14, a glue coating method using a glue coating apparatus for a foil material of embodiment 2, wherein the foil material is a coated aluminum foil 8, the coated aluminum foil 8 includes an aluminum foil 801, and the middle portions of the front and back surfaces of the aluminum foil 801 are each provided with a conductive coating 802, and the glue coating method includes the following steps:
s1, wrapping a coated aluminum foil on an unreeling shaft of an unreeling machine 9, sequentially passing the free end of the coated aluminum foil 8 through gaps between a gluing head 7 and a working surface 101 of a negative pressure platform in each foil gluing device, and reeling the coated aluminum foil on a reeling shaft of a reeling machine 10;
the running path of the coated aluminum foil 8 between the unreeling machine 9 and the reeling machine 10 is provided with a front gluing section 12 and a back gluing section 13, the front of the coated aluminum foil 8 positioned at the front gluing section 12 faces upwards, the coated aluminum foil 8 positioned at the front gluing section 12 reaches the back gluing section 13 after passing through a plurality of guide rollers 11, the back of the coated aluminum foil 8 positioned at the back gluing section 13 faces upwards, and the front gluing section 12 and the back gluing section 13 are provided with foil gluing equipment;
in this embodiment, two glue layers 803 are formed on the front surface of the aluminum foil 801, one of the two glue layers 803 covers one side edge of the front surface of the aluminum foil 801 and one side edge of the front conductive coating 802, the other covers the other side edge of the front surface of the aluminum foil 801 and the other side edge of the front conductive coating 802, the two side edges of the back surface of the coated aluminum foil 8 are required to be glued, two glue layers 803 are formed on the back surface of the aluminum foil 801, one of the two glue layers 803 covers one side edge of the back surface of the aluminum foil 801 and one side edge of the back conductive coating 802, and the other covers the other side edge of the back surface of the aluminum foil 801 and the other side edge of the back conductive coating 802;
in contrast, if there is only one glue spreading device in the foil glue spreading device, two foil glue spreading devices are respectively configured in the front glue spreading section 12 and the back glue spreading section 13, and the two foil glue spreading devices in the front glue spreading section 12 are respectively responsible for spreading glue on the edge of one side of the front side of the aluminum foil 801; two foil gluing devices in the back gluing section 13 are respectively responsible for gluing the edge of one side of the back of the aluminum foil 801;
if there are two glue spreading devices in the foil glue spreading device, the front glue spreading section 12 and the back glue spreading section 13 are respectively provided with a foil glue spreading device, and a single foil glue spreading device in the front glue spreading section 12 is simultaneously responsible for spreading glue on two edges of the front side of the aluminum foil 801; the single foil gluing equipment in the back gluing section 13 is simultaneously responsible for gluing the edges of the two sides of the back side of the aluminum foil 801;
s2, along with the running of the coated aluminum foil 8 between the unreeling machine 9 and the reeling machine 10, the coated aluminum foil 8 is firstly subjected to front gluing at a front gluing section 12, a glue layer 803 is formed on the front side of the aluminum foil 801, then reaches a back gluing section 13 to be subjected to back gluing, and the glue layer 803 is formed on the back side of the aluminum foil 801;
wherein, the leveling area 1011 of the working face 101 of the negative pressure platform of the foil gluing device at the front gluing section 12 adsorbs the coated aluminum foil 8, the main glue outlet 7011 of the gluing head 7 is aligned with the edge of the front surface of the aluminum foil 801, the auxiliary glue outlet 7012 is aligned with the conductive coating 802 of the front surface of the aluminum foil 801, and when the front surface of the coated aluminum foil 8 is glued, the refrigerating unit at the front gluing section 12 is turned on or turned off;
the leveling area 1011 of the working face 101 of the negative pressure platform of the foil gluing device at the back gluing section 13 adsorbs the coated aluminum foil 8, the main glue outlet 7011 of the gluing head 7 is aligned with the front edge of the aluminum foil 801, the auxiliary glue outlet 7012 is aligned with the conductive coating 802 at the back of the aluminum foil 801, and when the back of the coated aluminum foil 8 is glued, the refrigerating unit at the back gluing section 13 is started.
The above-described preferred embodiments according to the present invention are intended to suggest that, from the above description, various changes and modifications can be made by the worker in question without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.
Claims (8)
1. A foil gluing device is characterized in that: the device comprises a support (2), a gluing device and a negative pressure platform, wherein the negative pressure platform comprises a platform body (1) and a refrigerating unit for refrigerating foil, a working surface (101) is arranged on the outer side of the platform body (1), a negative pressure cavity (102) is arranged in the platform body (1), a leveling area (1011) for adsorbing the foil and a coating area (1012) opposite to a gluing head (7) are arranged on the working surface (101), the leveling area (1011) and the coating area (1012) are staggered with each other, a plurality of negative pressure holes (1021) are formed in the leveling area (1011), and the negative pressure holes (1021) are communicated with the negative pressure cavity (102); the gluing device and the platform body (1) are both arranged on the bracket (2);
the glue spreading device comprises a glue feeding mechanism (3), a glue breaking mechanism (4), a glue feeding module (5) and a glue spreading head (7) for coating glue, wherein the glue feeding mechanism (3) is used for providing the glue for the glue feeding module (5), the glue spreading head (7) and the glue feeding module (5) are fixedly connected and communicated with each other, the glue breaking mechanism (4) is used for allowing or blocking the glue in the glue feeding module (5) to flow into the glue spreading head (7), and the glue spreading head (7) is positioned above a working surface (101) of a negative pressure platform and is opposite to a leveling area (1011) of the negative pressure platform;
the glue spreading device further comprises a heating block (6), wherein a glue inlet flow channel (601) is formed in the heating block (6), the glue supply mechanism (3) is communicated with the glue inlet module (5) through the glue inlet flow channel (601), and a heating assembly is arranged on the heating block (6);
the glue supply mechanism (3) comprises a glue cylinder (301), wherein one end of the glue cylinder (301) is provided with a gas inlet (3011), the other end of the glue cylinder is provided with an outlet, and the outlet of the glue cylinder (301) is communicated with the glue inlet module (5);
the rubber coating head (7) is including gluing the head body, it has out gluey hole (701) to glue the head body, it has main play gluey mouth (7011) to go out gluey hole (701), main play gluey mouth (7011) one end extension has vice play gluey mouth (7012), main play gluey mouth (7011) and vice play gluey mouth (7012) communicate each other, just vice play gluey mouth (7012) are along main play gluey mouth (7011) to vice play gluey mouth (7012) direction slope gradually upwards, play gluey hole (701) and advance gluey module (5) intercommunication.
2. Foil gluing device according to claim 1, characterized in that: the glue breaking mechanism (4) comprises a firing pin (401) and a power mechanism, a first runner (501) and a second runner (502) communicated with the first runner (501) are arranged in the glue feeding module (5), a step surface (503) for the firing pin (401) to abut against is arranged between the first runner (501) and the second runner (502), the glue feeding mechanism (3) is communicated with the first runner (501), the second runner (502) is communicated with the glue coating head (7), the power mechanism is used for driving the firing pin (401) to be close to or far away from the step surface (503), one end of the firing pin (401) is inserted into the first runner (501), and the other end of the firing pin is connected with the power mechanism.
3. Foil gluing device according to claim 2, characterized in that: the power mechanism comprises a valve body (402), a valve cavity is formed in the valve body (402), a piston (403) is fixed at one end, far away from the first flow channel (501), of the firing pin (401), the interior of the valve cavity is divided into a rodless cavity (404) and a rod cavity (405) by the piston (403), the firing pin (401) is located in the rod cavity (405), a spring (406) is arranged in the rodless cavity (404), and the spring (406) props against the piston (403).
4. A foil gluing device according to claim 3, wherein: an adjusting rod (407) is connected to the valve body (402) in a threaded mode, and one end, away from the piston (403), of the spring (406) abuts against the adjusting rod (407).
5. Foil gluing device according to claim 2, characterized in that: the power mechanism is an air cylinder or an electric push rod.
6. Foil gluing device according to claim 1, characterized in that: and a filtering component (602) for filtering the glue flowing through the glue inlet flow passage (601) is arranged in the glue inlet flow passage (601).
7. Foil gluing device according to claim 1, characterized in that: the number of the gluing devices on the support (2) is two.
8. The utility model provides a gluing method of foil gluing equipment, foil gluing equipment includes support (2), rubber coating device and negative pressure platform, negative pressure platform includes platform body (1) and is used for to the refrigerated refrigerating unit of foil, the outside of platform body (1) has a working face (101), have negative pressure chamber (102) in platform body (1), have on working face (101) be used for adsorbing flattening district (1011) and be used for with the coating district (1012) of gluing head (7) opposition of foil, flattening district (1011) and coating district (1012) stagger each other and set up, have a plurality of negative pressure hole (1021) in flattening district (1011), negative pressure hole (1021) all communicate with negative pressure chamber (102); the gluing device and the platform body (1) are both arranged on the bracket (2);
the glue spreading device comprises a glue feeding mechanism (3), a glue breaking mechanism (4), a glue feeding module (5) and a glue spreading head (7) for coating glue, wherein the glue feeding mechanism (3) is used for providing the glue for the glue feeding module (5), the glue spreading head (7) and the glue feeding module (5) are fixedly connected and communicated with each other, the glue breaking mechanism (4) is used for allowing or blocking the glue in the glue feeding module (5) to flow into the glue spreading head (7), and the glue spreading head (7) is positioned above a working surface (101) of a negative pressure platform and is opposite to a leveling area (1011) of the negative pressure platform; the foil is a coated aluminum foil (8), the coated aluminum foil (8) comprises an aluminum foil (801), and conductive coatings (802) are respectively arranged in the middle of the front surface and the back surface of the aluminum foil (801), and the foil is characterized in that: the gluing method comprises the following steps:
s1, wrapping a coated aluminum foil on a unreeling shaft of an unreeling machine (9), enabling the free end of the coated aluminum foil (8) to sequentially pass through gaps between a gluing head (7) and a working surface (101) of a negative pressure platform in each foil gluing device, and winding the coated aluminum foil on a reeling shaft of a reeling machine (10);
the running path of the coated aluminum foil (8) between the unreeling machine (9) and the reeling machine (10) is provided with a front gluing section (12) and a back gluing section (13), the front surface of the coated aluminum foil (8) positioned at the front gluing section (12) faces upwards, the coated aluminum foil (8) positioned at the front gluing section (12) reaches the back gluing section (13) after passing through a plurality of guide rollers (11), the back surface of the coated aluminum foil (8) positioned at the back gluing section (13) faces upwards, and the front gluing section (12) and the back gluing section (13) are provided with foil gluing equipment;
s2, along with the running of the coated aluminum foil (8) between the unreeling machine (9) and the reeling machine (10), the coated aluminum foil (8) carries out front gluing at a front gluing section (12) firstly, and then reaches a back gluing section (13) to carry out back gluing;
wherein, the leveling area (1011) of the working face (101) of the negative pressure platform of the foil gluing equipment at the front gluing section (12) adsorbs the coated aluminum foil (8), the main glue outlet (7011) of the gluing head (7) is aligned with the edge of the front face of the aluminum foil (801), the auxiliary glue outlet (7012) is aligned with the conductive coating (802) of the front face of the aluminum foil (801), and when the front face of the coated aluminum foil (8) is glued, the refrigerating unit at the front gluing section (12) is opened or closed;
a leveling area (1011) of a working face (101) of a negative pressure platform of foil gluing equipment at a back gluing section (13) adsorbs a coated aluminum foil (8), a main glue outlet (7011) of a gluing head (7) is aligned with the front edge of the aluminum foil (801), a secondary glue outlet (7012) is aligned with a conductive coating (802) at the back of the aluminum foil (801), and a refrigerating unit at the back gluing section (13) is started when the back of the coated aluminum foil (8) is glued.
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